Magnetic separator.



No. 805,289. PATENTED NOV. 21, 1905.

H. B. HEATH.

MAGNETIC SEPARATOR.

APPLIGATION FILED snrmv, 190s.

' pieces arranged to UNITED STATES PATENT OFFICE.

ASSIGNOR TO GENERAL OF NEW YORK.

MAGNETIC SEPARATOR.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application led September 1'7, 1903. Serial No. 173,507.

Be it known that I, HARRY E. HEATH, a citi- Zen of the United States, residing at Windsor, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Magnetic Separators, of which the following is a specification.

This invention relates to machines for separating magnetic material from ores or scrap; and it consists in a plurality of traveling polepass in proximity to a stationary energizing-conductor at some point in their movement, whereby they will become magnetized and Will attract the substance to be separated from a mass of material moved transversely to the line of travel of said polepieces.

In the accompanying drawings, Figure l is an end elevation of a machine embodying my invention, and Fig. 2 is a side elevation of the same.

The material to be treated, which may be crushed ore, shop-sweepings, scrap. or the like, is fed from a hopper l to a suitable conveyer, preferably a level endless carrier-belt 2, moving continuously in one direction. At one or more points above the conveyer is a stationary conductor, preferably a single copper bai' 3, through which an electric current i'iows from some suitable source, such as the generator 4c. to the conveyer 2, and above it is arranged an endlessseries of soft-iron pole-pieces 5, preferably in the form of an endless belt running over suitable supporting and driving pulleys 6, by means of which said pole-pieces are caused to travel across the carrier-belt 2 in proximity to the conductor 3. The polepieces are preferably bifurcated, so as to straddle said conductor and depend below it. The current in said conductor magnetizes the polepieces, so that as they pass across the carrierbelt they pick up the magnetic particles from the material on said belt and carry vit to one side. The point where the pole-pieces move up and away from the conductor is beyond the edge of the carrier-belt, and they prefer- The conductor lies transverse* ably pass so close to the conductor that the magnetic material 7 is stripped off by the con-` ductor and drops into a suitable receptacle. The particles not scraped oft in this manner fall off of themselves when the pole-pieces pass out of the lield of the conductor and lose their magnetism. The tailings 8 are dumped off the end of the carrier-belt.

In accordance with the patent statutes, I have described the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative and that the invention can be carried out by other means.

` What I claim as new, and desire to secure by Letters Patent of the United States, is

l. In a magnetic separator, the combination with a stationary conductor, of a plurality of pole-pieces traveling longitudinally thereof and in proximity thereto, and means for conveying the material to be treated beneath said pole-pieces.

2. In a magnetic separator, the combination with astationary conductor, of an endless series of soft-iron pole-pieces, and means for moving them in proximity to said conductor and to a conveyer.

3. In a magnetic separator, the combination with a stationary conductor, of a plurality of bifurcated pole-pieces straddling said conductor, and means for moving said pole-pieces along' said conductor and above a conveyer.

4. In a magnetic separator, the combination with a carrier-belt, of a conductor transverse to said belt, a plurality of pole-pieces, and means for moving same in proximity to said conductor across said belt and up close to and away from the conductor at a point beyond the edge of the belt.

In Witness whereof I have hereunto set my hand this 14th day of September, 1903.

HARRY E. HEATH.

I Witnesses:

I I/VILLIAM T. MARKS,

D. ELLsWoRTH PHELPS. 

